Comment 2 for bug 24467

Every universal Desktop Linux distribution needs modern, simple and user-frienly Firewall/Routing/Port forwarding solution (Internet connection sharing) for the desktop.
For the GNOME desktop the best solution is the Firestarter - look at screenshots:
http://www.fs-security.com/screenshots.php

Key Firestarter Features

    * Open Source software, available free of charge
    * Easy to use graphical interface
    * Suitable for use on desktops, servers and gateways
    * Enables Internet connection sharing
    * Allows you to define both inbound and outbound access policy
    * Option to whitelist or blacklist traffic
    * Sets up DHCP for a local network
    * Real time firewall events view
    * View active network connections, including any traffic routed through the firewall
    * Advanced Linux kernel tuning features

More features...